CN210397465U - 一种滑轮组轴承的双螺纹防松装置 - Google Patents
一种滑轮组轴承的双螺纹防松装置 Download PDFInfo
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- CN210397465U CN210397465U CN201920850116.2U CN201920850116U CN210397465U CN 210397465 U CN210397465 U CN 210397465U CN 201920850116 U CN201920850116 U CN 201920850116U CN 210397465 U CN210397465 U CN 210397465U
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Effective date of registration: 20201224 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |